User's Manual

Chapter 1: Working with the ER-1000
TR0190 Rev. A1 11
DO NOT CONNECT ANY DEVICE OTHER THAN THE EL-900 TO THE PORT
LABELED “CPE” ON THE PoE INJECTOR. NETWORK EQUIPMENT THAT
DOES NOT SUPPORT PoE CAN BE PERMANENTLY DAMAGED BY
CONNECTING TO A PoE SOURCE. NOTE THAT MOST ETHERNET
INTERFACES ON PERSONAL COMPUTERS (PCs), LAPTOP/NOTEBOOK
COMPUTERS, AND OTHER NETWORK EQUIPMENT (E.G. ETHERNET
SWITCHES AND ROUTERS) DO NOT SUPPORT PoE.
1.3.2 Antenna
The EL-900 AP radio port is an N-type RF connector that can interface with a wide range of
Tranzeo antennas. After purchasing the desired 2.4GHz or 5.8GHz antenna (for the EL-900HG
or EL-900HA models respectively), attach the antenna to the access point (AP) radio port on
the EL-900. The antenna must be chosen such that its gain combined with the output power of
the radio complies with maximum radiation power regulatory requirements in the area the EL-
900 is used.
The following is a list of supported accessory antennas sold with the EL-900 family, as shown
in Table 2.
This device has been designed to operate with the antennas listed below, and having a
maximum gain of 32 dBi. Antennas not included in this list or having a gain greater than 32 dBi
are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.
Tranzeo Part Number Antenna Type
TR-OD900-12 Omni
TR-900H-120-12 Horizontal Sector
TR-900V-120-13 Vertical Sector
Table 2 Supported Accessory antennas
1.4 Deployment Considerations
The EL-900’s radio operates in either the 2.4 GHz or the 5.8 GHz ISM band, depending on the
model. It is possible that there will be other devices operating in these bands that will interfere
with the EL-900’s radio. Interference from adjacent EL-900s can also degrade performance if
the EL-900s are not configured properly.
It is advisable to carry out a site survey prior to installation to determine what devices are
operating in the band that your EL-900 uses. To detect the presence of other 802.11 devices,